Kazutoshi Hayashi

No ORCID on file · 9 papers in corpus
case-report 2025
A Pharus Method for Laparoscopically Locating a Uterine Niche in Cesarean Scar Disorder
Asian journal of endoscopic surgery ·doi:10.1111/ases.70197

INTRODUCTION: Cesarean scar disorder (CSDi) is a pathological entity involving a myometrial defect at the site of a previous cesarean section, commonly associated with postmenstrual spotting, dysmenorrhea, and secondary infertility. While l…

other 2025
Close Contact Transillumination Light Guides Surgeon to Vaginal Point Aa: Pharus Method for Robot-Assisted Sacrocolpopexy
Asian journal of endoscopic surgery ·doi:10.1111/ases.13412

INTRODUCTION: In robot-assisted sacrocolpopexy (RSC) for patients with cystocele, accurate identification of the vaginal point Aa from the serosal side is crucial for surgical mesh placement in the appropriate position. We developed a novel…

observational 2018
Comparison of endometriotic cysts and ovarian cancer in association with endometriotic cysts
Cancer treatment and research communications ·doi:10.1016/j.ctarc.2017.11.002

OBJECTIVE: The aim of this study was to clarify the clinical, laboratory, and imaging findings of ovarian cancer in association with endometriotic cysts by detailed comparison of the findings of benign and malignant tumors. METHODS AND MAT…

case-report 2015
Emergency surgery for tubo-ovarian abscess identified extended-spectrum beta-lactamase-producing Escherichia coli: the first case presentation revealing causative bacteria
Surgical case reports ·doi:10.1186/s40792-015-0069-6

We report herein a 41-year-old female with a tubo-ovarian abscess (TOA), which microbial cultures showed to contain extended-spectrum beta-lactamase (ESBL)-producing E. coli, a causative agent of community-acquired infection. The patient in…

2015
WITHDRAWN: Comparison of endometriotic cysts and ovarian cancer in association with endometriotic cysts
·doi:10.1016/j.cogc.2015.12.002
observational 2009
Human leukocyte antigen-G, a ligand for the natural killer receptor KIR2DL4, is expressed by eutopic endometrium only in the menstrual phase
Fertility and sterility ·doi:10.1016/j.fertnstert.2007.12.005

OBJECTIVE: To investigate menstrual cycle changes in expression by eutopic endometrium of a nonclassic human leukocyte antigen, HLA-G, which binds to the killer immunoglobulin-like receptor (KIR) 2DL4 (CD158d) on natural killer (NK) cells. …

observational 2007
Decreased human leukocyte antigen-DR expression in the lipid raft by peritoneal macrophages from women with endometriosis
Fertility and sterility ·doi:10.1016/j.fertnstert.2007.02.027

OBJECTIVE: To investigate the macrophage response in endometriosis by determining the expression and localization of human leukocyte antigen (HLA)-ABC and HLA-DR by the peritoneal fluid (PF) macrophages and PF concentrations of interferon (…

other 2006
Killer immunoglobulin-like receptor and human leukocyte antigen expression as immunodiagnostic parameters for pelvic endometriosis
American journal of reproductive immunology (New York, N.Y. : 1989) ·doi:10.1111/j.1600-0897.2005.00332.x

PROBLEM: We investigated host immunologic responses to endometriosis by comparing immune cell surface antigens in peripheral blood (PB) and peritoneal fluid (PF) from women with endometriosis with those in PB and PF from other patients. ME…

observational 2005
Human leukocyte antigen expression by peritoneal macrophages from women with pelvic endometriosis is depressed but coordinated with costimulatory molecule expression
Fertility and sterility ·doi:10.1016/j.fertnstert.2004.11.039

OBJECTIVE: To investigate the macrophage response in endometriosis, we determined expression of human leukocyte antigen (HLA)-ABC, HLA-DR, and their costimulatory molecules by peritoneal fluid (PF) macrophages. DESIGN: Case-control study o…